reactos/ntoskrnl/ke/kthread.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2000  ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /*
  20  * FILE:            ntoskrnl/ke/kthread.c
  21  * PURPOSE:         Microkernel thread support
  22  * PROGRAMMER:      David Welch (welch@cwcom.net)
  23  * UPDATE HISTORY:
  24  *                  Created 22/05/98
  25  */
  26
  27 /* INCLUDES *****************************************************************/
  28
  29 #include <ddk/ntddk.h>
  30 #include <internal/ke.h>
  31 #include <internal/ps.h>
  32 #include <internal/id.h>
  33 #include <internal/pool.h>
  34
  35 #define NDEBUG
  36 #include <internal/debug.h>
  37
  38 /* EXTERN ********************************************************************/
  39
  40 //extern VOID
  41 //PiTimeoutThread(struct _KDPC Dpc, PVOID Context, PVOID Arg1, PVOID Arg2);
  42
  43 /* FUNCTIONS *****************************************************************/
  44
  45 VOID
  46 KeFreeStackPage(PVOID Context, PVOID Address, ULONG PhysAddr)
  47 {
  48   if (PhysAddr != 0)
  49     {
  50       MmDereferencePage((PVOID)PhysAddr);
  51     }
  52 }
  53
  54 NTSTATUS
  55 HalReleaseTask(PETHREAD Thread)
  56 /*
  57  * FUNCTION: Releases the resource allocated for a thread by
  58  * HalInitTaskWithContext or HalInitTask
  59  * NOTE: The thread had better not be running when this is called
  60  */
  61 {
  62   extern unsigned int init_stack;
  63
  64   if (Thread->Tcb.StackLimit != (ULONG)&init_stack)
  65     {
  66       MmFreeMemoryArea(MmGetKernelAddressSpace(),
  67                        (PVOID)Thread->Tcb.StackLimit,
  68                        MM_STACK_SIZE,
  69                        KeFreeStackPage,
  70                        NULL);
  71     }
  72   Thread->Tcb.StackLimit = 0;
  73   Thread->Tcb.InitialStack = NULL;
  74   Thread->Tcb.StackBase = NULL;
  75   Thread->Tcb.KernelStack = NULL;
  76   return(STATUS_SUCCESS);
  77 }
  78
  79 VOID
  80 KeInitializeThread(PKPROCESS Process, PKTHREAD Thread, BOOLEAN First)
  81 /*
  82  * FUNCTION: Initialize the microkernel state of the thread
  83  */
  84 {
  85    PVOID KernelStack;
  86    NTSTATUS Status;
  87    extern unsigned int init_stack_top;
  88    extern unsigned int init_stack;
  89    PMEMORY_AREA StackArea;
  90    ULONG i;
  91
  92    KeInitializeDispatcherHeader(&Thread->DispatcherHeader,
  93                                 InternalThreadType,
  94                                 sizeof(ETHREAD),
  95                                 FALSE);
  96    InitializeListHead(&Thread->MutantListHead);
  97    if (!First)
  98      {
  99        KernelStack = NULL;
 100
 101            MmLockAddressSpace(MmGetKernelAddressSpace());
 102            Status = MmCreateMemoryArea(NULL,
 103                                    MmGetKernelAddressSpace(),
 104                                    MEMORY_AREA_KERNEL_STACK,
 105                                    &KernelStack,
 106                                    MM_STACK_SIZE,
 107                                    0,
 108                                    &StackArea,
 109                                    FALSE);
 110            MmUnlockAddressSpace(MmGetKernelAddressSpace());
 111
 112        if (!NT_SUCCESS(Status))
 113          {
 114            DPRINT1("Failed to create thread stack\n");
 115            KeBugCheck(0);
 116          }
 117        for (i = 0; i < (MM_STACK_SIZE / PAGESIZE); i++)
 118          {
 119            Status = MmCreateVirtualMapping(NULL,
 120                                            KernelStack + (i * PAGESIZE),
 121                                            PAGE_EXECUTE_READWRITE,
 122                                            (ULONG)MmAllocPage(0));
 123          }
 124        Thread->InitialStack = KernelStack + MM_STACK_SIZE;
 125        Thread->StackBase = KernelStack + MM_STACK_SIZE;
 126        Thread->StackLimit = (ULONG)KernelStack;
 127        Thread->KernelStack = KernelStack + MM_STACK_SIZE;
 128      }
 129    else
 130      {
 131        Thread->InitialStack = (PVOID)&init_stack_top;
 132        Thread->StackBase = (PVOID)&init_stack_top;
 133        Thread->StackLimit = (ULONG)&init_stack;
 134        Thread->KernelStack = (PVOID)&init_stack_top;
 135      }
 136
 137    /*
 138     * The Native API function will initialize the TEB field later
 139     */
 140    Thread->Teb = NULL;
 141    Thread->TlsArray = NULL;
 142    Thread->DebugActive = 0;
 143    Thread->State = THREAD_STATE_BLOCKED;
 144    Thread->Alerted[0] = 0;
 145    Thread->Alerted[1] = 0;
 146    Thread->Iopl = 0;
 147    /*
 148     * FIXME: Think how this might work
 149     */
 150    Thread->NpxState = 0;
 151
 152    Thread->Saturation = 0;
 153    Thread->Priority = 0;
 154    InitializeListHead(&Thread->ApcState.ApcListHead[0]);
 155    InitializeListHead(&Thread->ApcState.ApcListHead[1]);
 156    Thread->ApcState.Process = Process;
 157    Thread->ApcState.KernelApcInProgress = 0;
 158    Thread->ApcState.KernelApcPending = 0;
 159    Thread->ApcState.UserApcPending = 0;
 160    Thread->ContextSwitches = 0;
 161    Thread->WaitStatus = STATUS_SUCCESS;
 162    Thread->WaitIrql = 0;
 163    Thread->WaitMode = 0;
 164    Thread->WaitNext = 0;
 165    Thread->WaitBlockList = NULL;
 166    Thread->WaitListEntry.Flink = NULL;
 167    Thread->WaitListEntry.Blink = NULL;
 168    Thread->WaitTime = 0;
 169    Thread->BasePriority = 0;
 170    Thread->DecrementCount = 0;
 171    Thread->PriorityDecrement = 0;
 172    Thread->Quantum = 0;
 173    memset(Thread->WaitBlock, 0, sizeof(KWAIT_BLOCK)*4);
 174    Thread->LegoData = 0;
 175    /*
 176     * FIXME: Why this?
 177     */
 178    Thread->KernelApcDisable = 1;
 179    Thread->UserAffinity = Process->Affinity;
 180    Thread->SystemAffinityActive = 0;
 181    Thread->Queue = NULL;
 182    KeInitializeSpinLock(&Thread->ApcQueueLock);
 183    memset(&Thread->Timer, 0, sizeof(KTIMER));
 184    Thread->QueueListEntry.Flink = NULL;
 185    Thread->QueueListEntry.Blink = NULL;
 186    Thread->Affinity = Process->Affinity;
 187    Thread->Preempted = 0;
 188    Thread->ProcessReadyQueue = 0;
 189    Thread->KernelStackResident = 1;
 190    Thread->NextProcessor = 0;
 191    Thread->CallbackStack = NULL;
 192    Thread->Win32Thread = 0;
 193    Thread->TrapFrame = NULL;
 194    Thread->ApcStatePointer[0] = NULL;
 195    Thread->ApcStatePointer[1] = NULL;
 196    Thread->EnableStackSwap = 0;
 197    Thread->LargeStack = 0;
 198    Thread->ResourceIndex = 0;
 199    Thread->PreviousMode = KernelMode;
 200    Thread->KernelTime = 0;
 201    Thread->UserTime = 0;
 202    memset(&Thread->SavedApcState, 0, sizeof(KAPC_STATE));
 203    Thread->Alertable = 1;
 204    Thread->ApcStateIndex = 0;
 205    Thread->ApcQueueable = 0;
 206    Thread->AutoAlignment = 0;
 207    KeInitializeApc(&Thread->SuspendApc,
 208                    Thread,
 209                    0,
 210                    PiSuspendThreadKernelRoutine,
 211                    PiSuspendThreadRundownRoutine,
 212                    PiSuspendThreadNormalRoutine,
 213                    KernelMode,
 214                    NULL);
 215    KeInitializeSemaphore(&Thread->SuspendSemaphore, 0, 255);
 216    Thread->ThreadListEntry.Flink = NULL;
 217    Thread->ThreadListEntry.Blink = NULL;
 218    Thread->FreezeCount = 0;
 219    Thread->SuspendCount = 0;
 220
 221    /*
 222     * Initialize ReactOS specific members
 223     */
 224    Thread->ProcessThreadListEntry.Flink = NULL;
 225    Thread->ProcessThreadListEntry.Blink = NULL;
 226    KeInitializeDpc(&Thread->TimerDpc,
 227                    (PKDEFERRED_ROUTINE)PiTimeoutThread,
 228                    Thread);
 229    Thread->LastEip = 0;
 230
 231    /*
 232     * Do x86 specific part
 233     */
 234
 235 }
 236